Read about the fascinating history of #DarkMatter in our historical review today on arXiv arxiv.org/abs/1605.04909 https://t.co/aknRPgDK9F

House numbers in #Amsterdam https://t.co/slPuuHXYrt

Spring in Amsterdam @Iamsterdam goo.gl/5kz5yS via @JohnRHutchinson https://t.co/4c6zbPWJUJ

Check out Google’s impressive 3d painting app ‘Tilt Brush’ tiltbrush.com https://t.co/haejyzsTqv